115 degrees shouldn't cause immediate short term issues IMO, I come from induction melting and experienced the same ambient temps. I agree with the design issues but you have power issues causing those acute problems.
Well how bout that..check the 1st post date of this thread...another cap just blew up.
Its 115°f on the rooftop!!!!!. Supply voltage 479v thats fine. Started blower motor back up with new cap, its rated at 1.7...drawing 3A ..???? Dam near double
On the last motor we changed out...you couldnt turn the shaft and it was hot as hell. As it cooled down it began to spin again,
Im goin with the heat and expansion theory on this as the culprit for all these cap and motor issues
. Any yays or nays?
Verified 479 supply voltage, did you verify the motor requirements? Could this be a 575v packaged unit installed in a 460v application?